1. They work all year round.
If you are worried about solar water heater work only during summer and no. The current solar water heaters are fully able to work all year around. With the installation of one, sure to offer year-round hot water. Not only that you will not have to worry about blackouts affecting your supply of hot water.
2. Easily reduced to 33% on your electricity bill.
Compared with conventional heating systems, solar water heater easily reduces your electricity bill by 33 percent. Conventional heating systems using electricity or other fuels to heat water, but freely available solar energy is used, and therefore helps to reduce the bill.
3. Solar water heaters are effective.
Because it used solar energy, which is available in abundance, and FREE, it is very effective, easy to install and gives you value for money.
4. Save and preserve natural resources.
Our natural resources are a layer at a faster rate than ever. Installation of solar water heater is the first step you take to become green, to save and preserve our planet.
5. Breathe Easy with zero pollution.
No harmful emissions to be worried by the solar boiler. Unlike other conventional fuels that cause pollution or noise or air. This means not only us but also future generations, can also breathe easier and lead a healthy life.
6. Sustainable and does not require much maintenance.
They are durable, last a long time and requires very little or almost no maintenance. Not only that, even if other energy cost increases for fuel costs for heating your water will be the same, which is practically zero in the long term.
7. Building Your Own Solar water is cheaper.
Commercial water heater costs more than $ 1000, while construction of their own solar water costs will work to less than $ 100, which does not need to say you save a lot of money.
Wednesday, May 20, 2009
Maglev wind turbine - is this the future of wind power?
Levitating vertical axis wind turbines might become the solution for the ever growing demand for electricity. Let’s revisit the concept in a few lines.
Levitation is achieved by using permanent magnets placed in strategic locations to provide “lift” for the vertical axis turbine. This allows the turbine to hover above the ground (levitate), and thus produce no friction while it spins. Friction is one of the most influencing forces that reduce the power output of any machine with moving parts. Eliminating this reduction factor can greatly improve a machines efficiency.
This is the Maglev turbine’s advantage (Maglev = magnetic levitation). According to some sources, a single large Maglev turbine can output as much as a gigawatt of power (enough for about 750,000 homes), which is an enormous increase over the largest conventional wind turbine capacity today of about 6 MW. Operating wind speeds range from low (1.5 m/s or ) to very high (40 m/s), making this wind turbine an efficient power generator across a wide range of wind speeds. Once commercialized, Maglev turbines could increase power generation by 20% compared to conventional turbines, while reducing operating costs by as much as 50%!
Currently, there are projects being developed in Northern China by ZK Energy, where Maglev turbines are to be used for rural area electrification. There is now news whether anything has been completed yet.
Full Permanent Magnetic Suspension Wind Power Generators, as they are also called, represent a very promising future for wind power generation. It remains to be seen how the machines actually perform in actual installations. Requiring a relatively small area of land for operations, about 100 acres, these wind power generators have another advantage over conventional wind turbines - they take up less space, so there is less negative impact on the surrounding landscape.
Levitation is achieved by using permanent magnets placed in strategic locations to provide “lift” for the vertical axis turbine. This allows the turbine to hover above the ground (levitate), and thus produce no friction while it spins. Friction is one of the most influencing forces that reduce the power output of any machine with moving parts. Eliminating this reduction factor can greatly improve a machines efficiency.
This is the Maglev turbine’s advantage (Maglev = magnetic levitation). According to some sources, a single large Maglev turbine can output as much as a gigawatt of power (enough for about 750,000 homes), which is an enormous increase over the largest conventional wind turbine capacity today of about 6 MW. Operating wind speeds range from low (1.5 m/s or ) to very high (40 m/s), making this wind turbine an efficient power generator across a wide range of wind speeds. Once commercialized, Maglev turbines could increase power generation by 20% compared to conventional turbines, while reducing operating costs by as much as 50%!
Currently, there are projects being developed in Northern China by ZK Energy, where Maglev turbines are to be used for rural area electrification. There is now news whether anything has been completed yet.
Full Permanent Magnetic Suspension Wind Power Generators, as they are also called, represent a very promising future for wind power generation. It remains to be seen how the machines actually perform in actual installations. Requiring a relatively small area of land for operations, about 100 acres, these wind power generators have another advantage over conventional wind turbines - they take up less space, so there is less negative impact on the surrounding landscape.
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